Buttonhole-spacing apparatus.



A. B. SPENCER & F. E. WALKER. BUTTONHOLE SPACING APPARATUS.

APPLICATION FILED OCT. 12. 191's.

1,237,569. Patented Aug. 21,1917.

- UNITED s'rnrns PATE T- onnion.

ARTHUR BEDWARD SPENCER AND FRANK EDWARD WALKER, F HUCKNALL TORKARD,

ENGLAND, ASSIGNORS OF ONE-THIRD TO GEORGE SPENCER, OF LUTTEBWORTH,

ENGLAND.

BUTTONI-IOLE-SPACING APPARATUS.

Application filed October 12, 1916. Serial No. 125,320.

To all'whom it may concern I Be" it known that we, A THU BEDWA D Siamonn andFRANK E W RD XVALKER, both subjects of the King of Great Britain,and

) larly throughout a given length which may.

bothcitiz e'ns of Hucknall T'orkard, England, residing at Huckn'allTorkard, Nottinghamshir'e, England, have invented new and usefulImprovements in Buttonhole-Spacing Apparatus, of which the following isa specific ation.

This invention relates to spacing or di v1d1n a))aratus foruse with suchma-' chines as those employed for button-holing, sewing on buttons orperforming other operations which are analogous with the afore saidoperations in so far as a predetermined or definite spacing isnecessary, and particube variable.

For instance, in making buttonhol-es in or sewing buttons on a garmentfront, 1t 1S (Il6 sirable that the certain number of holes or buttonsshould be equally spaced although ingarments of diiferent' sizes thelength of front may vary.

The present inventioncomprises an. attachment for a buttonholmg machine,sew-- ing machine or the like, by the use of which" the proper spacingmay be readily determined irrespective of variation in the total lengthof the garment front or other mate: rial to be operated. upon. Theattachment is normallyset to give acertain number of divis ons orspacmgsifor a given length, and

then if when in"use,the total length varies nail, the apparatus may beextended or shortened according to the difference in length, and willwhen so adjusted, give the same number 'ofspacings each of greater orless length in proportion to the total increase or decrease. Y I

Thus it may be said that the apparatus effects a variation of thespacingsin proportion to any variation in the total. length suchspacings are to occupy.

The apparatus comprises a carrier upon whichis movably mounted a limitmember, point or gage, the relationship of which to the needle of themachine corresponds to the length of one spacing. At another locality onthe carrier'is a pivoted member furnished with a point or gage andconnected with the aforesaid limit member. The distance between thepoints represents the total length and a connection between them is soar- Figure 1 is a plan of an apparatus of convenient constructionaccording to this inventlon.

. Fig. 2 is a side elevation of the limit member.

Fig. 8 is an end view of same,

Fig. 4; is a side elevation of the pivoted member which cooperates withthe limit member. 7 Y a Fig. 1 is drawn to a smaller scale than theother figures and like parts are designated by the same referencecharacters in all they figures.

.In the convenient constructional form of the apparatus illustrated thedrawing, a carrier consisting of a rod 1 is supported by a bracket 2 orother device to be attached to the front of the machine or the benchuponwhich the machine is fixed. Slidable along the rod and situated on oneside of the machine needle 3 is a fingert furnished at its end with anupstanding point 5, or a hook or other device adapted to engage thebuttonhole or button or otherwise constitute a gage for the spacings.Situatedon the opcrum.7 of which is adapted to be fixed at differentpositions along the rod. For inst'anceflthe fulcrum may be screwed intoa block 8 slidable along the rod 1 and fastened by a thumb-screw 9(Fig.4), the adjust-ability being provided to enable the-lever to bealtered to suit different lengths.

The lever 6 on one side of its fulcrum is furnished with a point or gage10, and on the other side of the fulcrum is slotted at 11 and providedin the slot with a pivot pin 12 adapted to be fastened in differentpositions along the slot by a thumb-screw 13 or other suitable means.The pivot pin forms a pivotal connection between the lever 6 and a rod14 the latter being also pivotally attached at 15 to the aforesaidsliding finger 4.

The pivot pin 12 is set in a certain position along the slot 11 in thelever 6 according to the number of spacings required in the totallength, and then any movement of the lever on its pivot 7 to increase ordecrease the total length between the two points and 10 will also causea movement of the sliding finger .4- so that the ratio of the distanceof each of said points from the needle 3 will remain unaltered.

In using the device, the first buttonhole ismade or theifirst buttonattached, and then thesaid hole or button is put upon, engaged by, ormoved to the point, gage or equivalent 5 on the sliding finger t, afterwhich'the'opposite end of the garment front or material is put upon theother point/10 and the lever 6 1s moved on 1ts pivot 7 to vmake thedistance between the points 5 and 1.0 equal to the length of the front,the material itself being used to determine such distance. The materialthen occupies the correct position under the machine needle, 3 for thenext hole to be made or button to be attached, and by moving each holeor button when made or attached, to the point or gage 5 on the finger 4the correct posi-' ing the different numbers of spacings and the pinmay" be furnished with an index pointer.

Therod 14 is connected to the pivot pin 12 by means of an arm '16 (Fig.4) fastened tothe rod bya thumb screw 17 to admit of adjustment 'ofthelever along the carrier rod. WVhenthe'lever is tobe moved along therod 1, the' thumb-screws 9 and 17 are I slackened so that the block 8and arm 16 arefreelto slide along the rods 1 andvl l.

To in tially set the apparatus, the points and 10 011 the sliding fingerl and lever 6 are set b known measurement from the needle 3 W do the.lever is in the square position shown in Fig. 1, and the pivot pin 12is fixed in the slot 11 to give the proper leverage for the number ofspaces required.

The point5 is preferably formed by an upstanding portion'of a'plate 18adjustable along the finger 45 and fastened by ascrew 19. To prevent'thefinger from turning upon the rod 1 the latteris grooved longitudinallyat 20 and a feather or key 21 (Fig. 2) in the bore of the finger fitsthe groove.

The fulcrum'screw of the lever 6 may have thereon a-spring 22 to preventfree movement of the lever. 7

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of I i Washington, D. 0.

The invention is not to be limited to the details of construction hereindescribed as these may be varied if desirable or necessary withoutdeparting from the scope of the invention as defined by the appendedclaims.

What we claim then is LA spacing apparatus for use on a sewing machinefor the purpose described, comprising, a carrier, a gage member slidablethereon, a gagemember pivoted thereon, and a rod pivotallyattached'to'said mem-' bers and forming an operative connection betweenthem whereby they are caused to move in relatively opposite directions,the point of pivotal attachment of the 'rodfon the pivoted gage memberbeing adjustable relatively to the fulcrum of the latter. A

2. A spacing apparatus for use on a sewing machine for the purposedescribed, comprising, a carrier, a finger slidablethereon, a point orgage on said finger, a lever pivotally mounted on said carrier, a pointor gage on said lever adapted to be employed in conjunction with thepoint or gage on the finger, a pivot pin adjustable to and fro along aslot in said lever on the opposite" side of the fulcrum thereof to thepoint or gage, and a rod one end of which is attached to said pivot pinand the other end thereof to the sliding finger, substantially asdescribed. l j v 1 v 3. A- spacing apparatus for use on a sewing machinefor the purpose described, com

7 prising,'a carrier, a finger slidable thereon,

a point or gage on said finger, a lever pivotally mounted upon andadjustable along said carrier, a point or gage on said lever adapted tobe employed in conjunction with the point or gage on the finger, a pivotpin adjustable to and fro along a slot in said lever on the oppositeside. of the fulcrum thereof to the point or gage, a rod pivotallyattached at one end to the sliding finger,- and: a crank adjustablealong said rod andf connected to the pivot pin in the lever, sub:

stantially as described.

In testimony whereof we have signed our namesto this specification inthe presence of two subscrlblng w tnesses.

ARTHUR BEDWARD SPENCER.

FRANK EDWARD WALKER.

Patents.

